Paper-pulp engine



3 Sheets-Sheet 1.

(No Mqdel.)

J R ABBE Paper Pulp Engine.

Patented Dec. 28,1880.

(No Mudel.) a sheetssheen 2.v

J. R. ABBE. Paper Pulp Engine. No. 235,844. Patented Dec. 28,1880.

. (N Model.)

3 Sheets-Sheet 3. J R ABBE Paper Pulp Engine. No. 235,844.

Patented Dec. 28,1880.

UNITED STATES PATENT OFFICE.

JOHN HABBF., OF SOUTH WTNDHAM, CONNECTICUT.

PAPER-PULP ENGINE.

SPECIFICATION forming-part of Letters Patent o. 235,844pdated December28, 1 880.v Application ledJ une 30, 1880. (No model.)

To all whom it may concern:

Be it known that I, JOHN R. ABBE, of South Windham, in the county ofWindham and State of Connecticut, have invented certain new and usefulImprovements in Paper-Pulp Engines, of which the following Visaspecifica tion.

My improvement relates to paper-pulp engines, the construction of whichis hereinafter fully described; andthe objects of my improvement are,first, to so simplify the construction of the machine that the knivesand woods in both the male and female members of the engine may bereadily inserted by an unskilled person, and thereby save-the necessityof returning the machine or parts of-it to the factory where it is made`for the purpose of repairing the knives; second, to provide@receivingchamber through which to admit thev stock, and which willretain sand, bits of steel, or other substance, and thereby prevent themfrom dulling the knives; and, third, to so construct the parts,especially in relation to the bearin gs, that they may be easilyreiitted and also made durable. I attain these objects by meansoi themechanism illustrated in the accompanyin g drawings, in which- Figure lis a side elevation. Fig. 2 is a longitudinal and verticalsection. Fig.3 is a side elevationof, the outer"V shell or case with the end capsremoved. Fig. 4 is a side elevation of one of the woods and long knives.Fig. 5 is a side elevation of a portion of the cone carrying the knives.Fig. 6 is a side elevation of one of the short knives. Fig. 7 is avertical section of a portion of the machine, but on a larger scale thana like view, Fig. 2. Fig. 8 is an end view of a gang of knives forfilling theouter shell. Fig. 9'is a side view of one of said knives.Fig. 10 is a side elevation of a knife-frame. Fig. l1 is a developedview of the interior of the outer shell, showf ing its knives; and Fig.12 is a vertical transverse section of the shell.

Many of the parts of my machine are substantially the same as those incommon use, and such parts I consider unnecessary to speciiicallydescribe.` v

A designates the principal shell or case,

5o which, aside from the manner of inserting the vtending from onechamber to the other.

knives, is substantially the same as those in common use. This case isprovided at each end with a suitable stung-box or gland, a, which is ofordinaryconstruction, except that it is fitted to the hubs of the cone Binstead ot' to the shaft which carries said cone.

At'the small endoi" the shell, `and surrounding the stuffing-box, I forman annular chamber, b, the same being divided from the chamber of themain caseror shell A by a partition, but having openings c in saidpartition ex- By reference to Fig. 3 it will be seen that'these openingsdo not extend to the bottom'of said annular chamber b.

In using this machine stock is admitted through the inlets d into thechamber b near the bottom of `said chamber, from whence it passes upwardthrough the opening cinto the chamber of the main' case A, when theknives act upon it in the usual manner. In case sand,

iron, or other foreign substance is in the stock,

of the knives to be employed. Three of these `its general surface alittle less than the width ribs, f f f, may be of any desired form, but

preferably with plain sides. `Two of them, f andf, are made dovetail orTshapein crosssection, as shown in Fig. 2, and the rib f2 is beveledunder upon one side, as shown at the lower side of Fig. 2. These ribsaie slotted with a slotvof a thickness which will just admit theknivesto be employed, the slots upon theribs j' and f2 being in one and thesame line, while the slots in the ribs f are thrown a little to one sideof the line which passes` through the other slots by a distance aboutequal tothe thickness of the knives. The

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depthof the vslots extends to the general surface of the cone, or, inother words, the full depth 'of the ribs.`

The knives g, Figs. 4 and 6, are preferably beveledl at their ends, andthey are provided with notches h, of a shape corresponding to atransverse section of the ribs f. These knives may be made from ordinaryflat strips of sheet-steel.

The slots in the ribs of thecone can be very, readily cut on an ordinaryplaner, with the slots in the ribs j" out of line with the slots in theother ribs, by setting the cone upon centers and rocking it a little onsaid centers when the chisel is passing througlrthe ribs f,'-

and after it leavesA one of said ribs, and before it reaches one of theother ribs, it cangbe rocked back again, so that the chisel will passthrough on a. line with the irst slot cut by it. Suitable machinery canbe readily deiised to stop the cone in its proper position during theplaning process. After the knives and cone have been prepared, in orderto insert them it is only necessary to spring them a little4 out of astraight line, so as to enter into all the slots in the ribs, and thencrowd them down to the bottom of the ribs, when the opening h in theknives will receive the ribs fandfr and allow the knife to straightenitself by springing into position, as shown most clearly in Fig. 5, inwhich position the solid part of the hooked rib is in the notch orrecess of the knife, and prevents the same from being detached from thecone, except by springing the knife far enough to one side to bring itinto the oset slot of the ribj". The short knives, Fig. 6, are securedin place in the same manner,^only they take upon but one of the ribs f.In addition to this fastening of the short knives, one end is passedunder the beveled side of the rib f2. As in other cngines'of this class,veneered or other woods are placed between each of the knives to ill thespace between them nearly solid. A flange or plate, C, the inside ofwhich is beveled under to correspond with the bevels on the endsof theknives g, is then firmly bolted to the ends of the cone, as shown. Thisplate C is also provided with a collar or hub, t', which hub constitutesthe journal upon which the cone revolves.

The cone may be secured to the main shaft D independently of the plate Cand its hub i, or the cone may be secured to the shaft through the plateC and its hub t'. By making the hub t' of the plate C at the end of thecone constitute the journal upon which the cone revolves, said journalmay be readily redressed when worn, and thereby theshaft l) may be madeto last for a long time.

Although l have specified that the inlet for the stock was ,at d, I havealso provided an inlet, j, in the upper part of Ithe case A, by means ofwhich sand may be admitted for the purpose of grinding the knives in theordinary manner, and which inlet also may, if des1red, be used to admitsizing.

'The third part of my invention relates to the manner of securing theknives within the outer shell, and the main feature of this part of theinvention resides in arranging the knives with the woods between them ingangs and on the proper curvature to tit the shell, so thatthey may bereadily inserted by an unskilled workman. An end view of one of saidgangs of knives and the woods between the knives is represented in Fig.8. Y

As in ordinary knives, there is a bend or angle at the` middle portion,and I prefer to make these knives with the ends notched, as shown by theside view, Fig. 9. A gang of them with 'the woods between are held inplace by curved bolts, like the bolt lo in Fig. 8,

there being one of these bolts at each end of the kn-ives. instead,however, of using bolts, a frame may be employed like that shown in Fig.10, which consists of a wire bent into the desired form and with nutsupon the ends, and in which the arms l l are curved and take theplace ofthe bolt k in Fig. S, while the cross portion m serves as the head ofthe bolts. Rivets might also be employed in place of the bolt k, ifdesired. These knives are arranged, preferably, in three sections in thelength of the shell, and the gangs which are fitted for each sectionwill be upon a different curvature, according to the difference in thediameter of the shell. l secure lugs or blocks n to the inner wallsofthe case or shell at the proper distance apart, which lugs may besecuredby means of 'a screw or bolt passing through the shell A. Insecuring the knives within the shell I place two gangs between each pairof lugs fn., and then place two gibs, 0 o, properly formed to fit theknives, and between said gibs I force a wedge or key, p, which firmlysecures the knives in place. The spaces between the otherlugs are filledin like manner until the knives, lugs, gibs, and keys or wedges completethe entire circle of the shell. The other circles of knives are insertedin like manner, care being` taken to have the number of knives in eachgang, or the size of the gangs, of such relative proportions to eachother that the space in one circle which is occupied by the lugs n andthe gibs and keys o p o shall always be opposite knives in the adjoiningcircle; or, in other words, the knives in the respective circles arearranged so as to break joints.

Many of the'details in myimprovements may be varied without changing thecharacter of the invention, the essential features of which have beenheretofore pointed out. These inachines are sometimes used to revolve inone direction and sometimes in another, which should be taken intoconsideration in building the machine. For instance, the o'set slotsinthe ribs f should be so located as to be on the front side of theknifeas it revolves,

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I claim as my invention- 1. In a paper-pulp engine having a chamberwhich carries the knives, the receiving-chamber b, separated from thechamber containing the knives by a partition, but connected therewith byone or more openings, substantially as described, and for the purposespecified.

2. In a paper-pulp engine, the main case A, containing a chamber withknives, and the receiving-chamber b, both of which chambers .areprovided with an inlet and outlet, substantially as described, and for.the vpurpose specified'.

3. The cone provided with a series of ribs, part of lwhich are cut underupon their sides, and with the cut-under ribs" slotted longitudinallywith the cone," but out of line with the slots in the ,other ribs,substantially as described, and for the purpose specified.

4. The combination of the cone provided witha series of slotted ribs,part of which are cut `under and slotted. out of line with the rest,in'combination with the knives notched or recessed upon their inneredge, so as to take upon the sides offthepcut-under ribs, substantiallyas described, and for the purpose 5. The cone carrying a series ofknivesbeveledv at their ends, in combination with the plates C, beveledunder, as described, and secured to the ends of the cone, so as toenlbrace the ends of the knife, substantially as described, and for thepurpose. specified.

`6. The cone having a series of long and short knives provided with arib or ange, f2, 3 5

cut under upon one side, in combination with the ange or plate G,secured upon the endof the cone, said rib and plate embracing the end ofthe short knives, substantially as described, and for the purposespecified. 1 Y A 7 In a paper-pulp engine, the cone provided with `the,tubular hub i, which embraces the main shaft D, and the periphery ofwhich hub constitutes. the journal upon which the cone revolves,substantially as described, and for the purpose specified.

8. In a paper-pulp engine, a series of knives and woods secured togetherin a gang, and arranged npon the arc of a circle to conform to theinnerwalls of the shell, substantially as described, and for the purposespecified.

9. V1n a paper-pulp engine, a detached gang of knives and woods securedtogether by means of the curved bolts 711,01' their equivalent,substantially as described, and for the purpose specified.

10. The combination of the case or shell A, lugs u, the gangs of knivesand woods secured together independent lofthe case, and the gibsl andwedges or keys o p o, substantially as described, and for the purposespecified..

' JOHN R. ABBE.

Witnesses:

CRAs. S. ABBE,

SAM BINGHAM.

